Carburetor



July, 21, 1925.

1,546,585 E. JESKE CRBURETOR Filed June 26, 1925 2 Sheets-Sheet 1atroz/weg July 21, 1925. 1,546,585

' E. JESKE CRBURETOR Filed June 26, 1925 2 Sheets-Sheet 2 v v f /fPatented July 21, 1925, Y

,EDWARD JESKE, or GACKLE, :NORTH DAKOTA.

CARBURET on.

Application led June 26, 1923. Serial No. 647,790.

To all whom t may concern.'

Be it known that EDWARD Jnsnn, a cit-i- Zen ot the United States,residing at Gackle, North Dakota, has invented certain new and usefulImprovements in Carburetors, of which the tollowingis a specification.

This invention relates to certain new and useful improvementsin chargeforming devices for internal combustion engines, and has particularreference to an improved torni ot carburetor whereby a finely dividedmixture is obtained and the fuel and air are eiiectively mixed so thatthe engine may be economically operated and .maximum power derivedtherefrom.

The primary object ot the invention is to provide a novel and improvedmeans for the spraying of air and fuel into the intake end of thecarburetor Vwhereby a line spray and initial mixture of air and fuel isobtained.

Another object ofthe invention is to provide the air and fuel sprayingmeans in advanee of a series of partitions arranged in a novel manner,whereby the mixture is subjected to a more eiiective and liner mixingoperation before passing to the `outlet ot' the carburetor.

lWith the above general objects in view, and others that will becomeapparent as the nature of the invention is better understood, the sameconsists in the novel form, combination and arrangement of partshereinafter more fully described, shown in the accompanying drawings andclaimed.

In the drawings, wherein like reference characters indicatecorresponding parts throughout the several views,

Figure 1 is a top plan view of a carburetor constructed in accordancewith the present invention,

Figure 2 is an end elevational view looking towards the lett of Figure1,

Figure 3 is a longitudinal sectional view taken on the line 3 3 otFigure 1 and with part removed,

Figure 4 is a sectional view on line 1- t ot' Figure 1, and l Figure 5is a longitudinal sectional view taken on the line 5-5 of Figure 1.

Referring more in detail to the several views, the invention embodies acasing 5 having opposed intake and outlet ports 6 and 7 respectivelyprovided with the usual butterlly control valves 8 and 9 Which areprovided with the usual control mechanisms 1() and 11 whereby the chargevolume and main supply ot air are selective-ly or simultaneouslycontrolled in the well-known manner. V

lThe central portion of the casing 5 is provided with a hollowenlargement 12 atene side thereof, and as seen in Figure 3, this centralportion is also enlarged at the bottom thereof as at 13. In this mannerthe central portion of the casing is made relatively large and the spacetherein is divided into four chambers by means of intersectinglongitudinal and transverse partitions 111 and 15 respectively. Thus,the enlarged central portion of the casing in line with the inlet andoutlet ports 6 and 7 embody the inlet mixing chambers 16 and outletmixing chambers 17, while the side enlargement 12 embodies theintermediate mixing chambers 18 and 19 respectively communicating withthe compartments 1G and 17 through openings 20 and 21 provided in thelower end of the adjacent portions ot the partition 141. It is to benoted that the partition 15 at one side ot thep'artition'kt isimpervious, so that no communication is provided directly between thecompartments 16 and 17, but the partition 14 at the other side, orwithin the enlargement 12, is spaced trom the top wall et the casing, asindicated in Figure 5, to provide a communieating port 22 between thecompartments 18 and 19. A circuitous path is thus provided for thetravel of the explosive vmixture by means et which the latte-r is causedto travel first transversely of the casing, then longitudinally thereof,and then finally transversely of the casing in an opposite direction, tothe outlet port 7. In following this path of travel the mixture strikesagainst the top and bottom walls of the compartment, and in beingdeilected therefrom, is more thoroughly vaporized and mixed.

Means is provided for suppling the mixture initially to the compartment16 at the topof the latter and inwardly ot the butterfly valve 18. Thismeans embodies a pair ot tubes 23 which extend through the sides ot thecasing and converge inwardly so as to terminate in the same horizontalplane and in slightly spaced relation, as will be seen from aninspection of Figures 2 and 3. These tubes are open to the atmosphereand permit the ready flow of air thereto, while separate pipes 211extend a slight distance into the t-ubes 23 and terminate in dischargenozzles 25 opening toward the inner ends of the tubes for supplyingfuel, in a manner which will presently become apparent.

The side of the casing 5 opposite that occupied by the enlargement 12,is formed to provide a float chamber 26 having a top inlet 27 for thefuel which may be connected with the usual supply .tank in the wellknown manner. Arranged within the chamber 26 is a floa 2T having a stemprojecting beyond the top and bottom thereof, the lower projectingportion 23 of which is slidably engaged in a guide 2S) carried by theremovable bottom member 291, so that the float is effectively guided inits vertical movement. rEhe upper projecting end of the stein embodies aneedle valve 30 which is adapted to cooperate with the orifice 31 of theinlet nozzle 27 for the fuel, which nozzle is disposed directly abovethe valve 30, as shown in Figure e. lt will be seen that when t-he floatmoves upwardly to the required level of the fuel within the compartmentor reservoir 2G, the valve 30 will be closed for cutting off furthersupply of the fuel. A suitable draincoclr 32 may be carried by theremovable bottom 28% for withdrawing sediment or the like.

The chamber 26 is provided with a side outlet 33 controlled by a needlevalve 34; which regulates the volume of fuel wit-hdrawn from the chamber26, and the lateral branch 35 of the outlet 33 is attached to the endsof the pair of tubes 24 as at 36, the other ends of which each terminatein the nozzles 25 entering the tubes 23.

ln operation, the engine is started so as to induce suction in thecarburetor for drawing air through the tubes 23, and as this air passesthe nozzles 25, the fuel is sucked from the chamber 26 through the tubes24 into said tubes 23, to be discharged together with the air in streamsor sprays which intersect each other in the top of the compartment 16.Air also enters at the intake port G and mixes with the air entering thetubes ..3 and the fuel drawn through the nozzles 25, after which themixture follows the circuitous path mentioned above for beingeffectively mixed and ultimately delivered to the intake manifold of theengine through the outlet port 7.

lt has been found by actual practice that a carburetor constructed inaccordance with the above will give great satisfaction both as tocontinued operation and effective mixture of the air and gas forobtaining maximum power through the supply of a readily and highlyexplosive mixture.

Minor changes may be made without departing from the spirit and scope oft-he invention as claimed.

llJhat l claim is new and desire to secure by Letters Patent is:

A mixing device adjacent to and in the same horizontal plane with acarburetor, having a bottom enlargement and a side enlargement at theintermediate portion thereof, longitudinal and transverse partitionsdividing the enlarged portion into an intake chamber, an outlet chamber,and a pair of intermediate side chambers having ports spirallyconnecting said chambers in staggered relation, for providing acircuitous path for the mixture.

ln testimony whereof I aliix my signature.

EDl/VARD JESKE.

